Sanding block



FIG. 1 is a perspective view of sanding block showing my new design taken at 30° from the left;

FIG. 2 is a front side view of a sanding block showing my new design;

FIG. 3 is a back side view of a sanding block showing my new design;

FIG. 4 is a left end view of a sanding block showing my new design;

FIG. 5 is a right end view of a sanding block showing my new design;

FIG. 6 is a bottom view of a sanding block showing my new design; and,

FIG. 7 is a top view of a sanding block showing my new design. 

I claim the ornamental design for a sanding block, as shown and described. 